Electric switch.



. SACHS.

ELECTRIC SWlTCH.

APPLICATION man FEB. 18.. isis.

Patented Feb; 26,1918.

2 SHEET8-SHEET l MYMMV unwh 0662777 S'afirs i. SCHS.

ELECTRIC SWiTCi.

APPucATlor FILED rsa. 18. e915.

1,257,533. Patented Feb. 26, 1918. n f jt-@Wiliam JOSEPH SACHS, 0FHARTFORD, CNNECTICUT.

ELECTRIC SNITCH.

Speccaton of Letters Iatent.

Patented Feb. 26, 1918.

Application filed February 18, 1915. Serial No. 9,059.

To all wit-0m t may concern.'

Be it known that I, Josnri-I SACI-1s, a citizen of the United States,residing at Hartford, in the county of 'ilartford and State ofConnecticut, have invented certain new and useful Improvements inElectric Switches7 of which the following is a speci- 'tication Thisinvention relates to electric switches. An electric switch involving theinvention can be used with advantage in many different connections7 butit is of particular utility when used in conjunction withelectromagnetic actuating mechanism, and when so comi bined it functionsas a remote control switch. Among the principal objects of the inverttion are the provision of an article of the character set forth which issimple in construction and positive and certain in action.

In the drawings accompanying and forming part of the rresentspecitication I have shown several of the many forms of einbodiment ofthe invention which will be set forth in detail in the followingdescription. I do not restrict myself to this disclosure; I may departtherefrom in radical respects within the scene of the invention definedby the claims following said description.

AReferring to said drawings:

Figure l is a side elevation of one form of electromagnetically actuatedremote control switch involving my invention, parts being in section andbroken away.

Fi g. 2 is an end elevation as seen from the right in Fig. l.

F ig. 3 is a detail view showing a part of the switch bar actuatingmechanism illustrated in Fig. 1 but in a different position.

FiO. l is a perspective view of one form of what I term movementcontrolling contacts.

Fig. 5 is a diagram of circuit connections which may be used inconnection with the switch shown in the preceding views.

Figs. G, 7 and 8 are diagrams of other forms? all hereinafter moreparticularly described.

Like characters refer to throughout the several views.

In Figs. l to 4 inclusive of the drawings I have shown theelectromagnetic actuating device as an electric motor, the twoelectromagnetic elements thereof being the ield magnet and the armature?said device is adapted to move the .ring mechanism on and off positionsin :alternation yand like parts preferably7 also causes the action ofthe movement controlling contacts. In Figs. 5 to S inclusive I haveshown diagrams of the main and remote control circuits as well as aremote control circuit opening and closing device or as it may be calledmain switch controller. Fig. 5 the electromagnetic actuating element. islike that shown more in detail in Figs. l to -l inclusive, while inFigs. 6, 7 and S the electromagnetic actuating devices and switchingmechanism are of different kinds.

Referring first to Fig. 5 the field magnet winding is denoted hy Q, thea 'mature with its commutator being designate' hy 3 and the armatureshaft by el. The main switch involves a movable member such as the barsor arnzs 5 and 6 shown in the ottq or open circuited position but whichwhen in the on or closed position connect the contacts 7 and Fl and 9and l0 respectively. The snpgly or feeding rires of the two wire circuitare denoted by ll and 12. while the wires to the translating device ordevices are designated by and la, the translating device beingdesignated by l5. Ther two movable contactors as 16 and l?7 thecontacter 1G being in constant engagement 'with and adapted to slide orroll against the stationary contact olatot rod or har 18, while thecontacter 17 bears a similar relation to the bar, rod or plate 19. Thesemovable contactors lG and 17 as .vll be understood act as terminals fromthe armature brushes, the conl 1oeing connected through the bar andsuitable conductor to one commut tor brush, while the contactor lf?connected through the part 19 and a suitable conductor to the othercommutator brush. The moifablc contactors 16 and l? are cooperativelvmovable with the bars or arms 5 and S which latter are mechanicallyconnected to move as a, unit and preferably7 though not essentially.canjgiing the two contactors which with the 7i and G are insulated fromeach other. In addition to the movable contactors there are preferablystationary contacts such as Q0 and and Z and 23 arranged in cooperatingpairs and one movable contacter icing cooperative with each pair ofstationary contacts. which latter may consist of clips, fingers7 platesor something of oth suitable naturel the contactor 1G as shown coactingw' h the contacts 20 and 21 while the contacter l? cooperates with thecontacts Q@ and The lOO switch-control maire-and-breal device by meanset which the operation ot' a switch is controlled and which may belocated at any desired control point may be of any suit-- able kind,comprising as shown the central pivoted contacting arm Q-l and thestationary contacts 25 and 2G. The arm 2st is shown provided withoperating push buttons of insulating material one at each side ot itscenter ot oscillation, so that it may be moved into connection witheither the contact 25 as shown or into connection with the contact 26.

lt will be noted that the stationary switch movement control contacts 2land 22 are connected together and that both ot these contacts are inturn connected by a suitable conductor with one terminal ot the field.magnet winding, the other terminal oi" the latter being connected toone side of the circuit, which in the diagram is the conductor or wirell. rllhe contacting arm oi the switch control maleand brealrdevice isconnected to the other side et the circuit, as shown the wire l2. ltwill be understood that it is not necessary to run a wire from theremote control point back to the main switch, as this connection may bemane at any point so long as the arm 2li or its equivalent is connectedto the circuit at the opposite side ot' that to which the lield mag'-net winding is connected. The stationary contact 2O is electricallyconnected with the stationary contact 2G, while the contact 23 iselectrically connected with the stationary contact 25. For simplicityhave not shown the holding., fastening or attaching means between thearmature shaft and the switch bars 5 and 6 and m vable contactors 1G andl?. ln the form of switch shown in Figs. l to 4 inclusive theelectromagnetic actuating device is adapted to initiate the movements ofthe switch member made up of these two bars 5 and 6, al movements beingcompleted by sprinfv means tensioned on said initial movements as willherein.- after more particularly appear.

ln the diagram the main switch is shown in the ott or open circuitedposition. To put the switch into this position it was necessay tooperate the switch controller at the remote control point and bybringing the arm 2li against the stationary contact 25. ln order new toclose the main switch it is necessary that the circuit controller arm2st. be moved into engage' rent with the stationary Contact 26. lt willbe assumed that this has been done in which ease current will flow tromone side ot the main circuit, the wire l2 (as shown) to the arm 2li,contact 26, and by the connecting wire to the contact 20, movablecontacter lo, bar or rod 1S and from thence through the connecting wireto one oit the commutator brushes of the armature- 3, tirough thewinding of said armature to the other cour mutator brush, through theconnecting wire to the bar or rod 19j movable contactor 17, contact 22,by the connecting` wire to the field magnet winding 2 and from the fieldmagnet winding to the ogposite side ot the main circuit which as shownis the wire 1l. Consequently the current in the control circuit ispassed through the series connected. switch operating motor in suchmanner that the current flows through the armature in a direction toeffect the rotation ot the armature shaft ll and through the latter andcoacting means the movement of the main contact bars 5 and 6 intoconnection with `the contacts '2" and 8 and 9 and l0 respectively, themovable contactors 16 and l? at the same time being moved awa y fromthe. stationary contacts 20 and 22 respectively and into connection withthe contacts '2l and 23 respectively. lt will now be understood that themovable contactors 1G and 17 are constantly in connection with theeommutator brushes, serving in tact as movable contact terminals forsaid brushes. lt will be supposed that the main switch is in the on orclosed circuit position and that it is dcsired to open the main circuit.To accomplish this it is necessary to operate the arm or lever 24: tomove it in connection with the Contact 9.5. En this case the currentfrom the conductor l2 passes to the arm or lever 24, contact 25, contact23, movable contacter 17 to the armature 3 trom which passes to themovable contacter lo, con.- tact 2l, iield magnet winding Q and to theother side ot the circuit. lt will be noted that the direction of thecurrent through the armature 3 has been reversed 'from the direction ofthe current which existed previously7 although the direct ou oi thecurrent through the field win ding has remained as betere. in view otthe automatic operation ol the reversing armature connection. performedby the movable contactors 1G and l? cooperating with the stationarycontacts 2O and 21 and 22 and respectively. the rotative movement ot theswitch actuating armature is automatically governed or controlled so asto secure in the arrangement shown reversals in rotation of the armatureshaft el. t will also be obvious that after the main switch controllerarm 2st has been actuated 'to engage either the contacts or the conta QGand necessarily out of contact with the other tlnbreotj the operationand movement oit the movable contactors 1G and l? also automaticallybreaks the connection of the control or motor circuit, so that theconnection at the main switch controller 944i after having been oncemade need not be broken, because the circuit is automatically brokenthrough the intervention otl the movable contactors l@ and 17 into theirnew position, and when llO Cir

the latter is assumed, the electromagnetic actuating device Will beconditioned to effeet a reverse action of the main switch. That is tosay after the switch controller Qfl is once actuated to eiecteither theon or the oli' movement of the main switch motor, the circuit throughthis controller and associated devices is automatically ogened at themain switch and the armature of the switch actuating motor reversallyconnected.

The contacts Q and 22 With which the movable contactors 1G and 17 arerespectively cope "ative may be said to be the on movement. contacts,because the coi'itactors 1G and 17 must be in connection with thesecontacts 2O and to produce a j oper circuit arrangement for an onmovement ot the motor When the controller switch arn'i 2t is actuatedand brought into contact With the controller' contact 2G which nia); becalled the controller on contact and which is connected with the contact20, and this Wire so connecting these contacts 20 and 2G nuff be calledtl e controller on Wire. Nov: in contradistinction to the above thecontacts 2l and of the switch movement controlling mechanism orcontacting arrangement may be called the ott movement contacts, becausethe contactors l@ and l?" are in connection with these contacts 2l andQ3i respectively when the switch inottr actuati y armature is properlj,7connected 'to produce the oit movement ot the motor when the cir cuitiroperljv closed through the Contact by means oi? the l 'Ll i thereforethe contact ot the controller r qv or, called the controller olicoutactf and the colunectii'ig Wire bet-weon f called the controlar ottu'ire.

The main switch bars and 6, and the attached contactors l and l?, arepreirabl 5v snapped into the on o ctt position b v spring energy thespring i used tor this purn pose being teusioned br ie motor. Alfter thespring` has been :ed the requisite extent1 it released and caused toimpart energy to the said han aid t3 and contactors 1G and l?. Consenticntly there is an interval between the sta arma ture rotation and theactual l into on or oli position. For that i dcsiral e that thecontroller used with this torni t my remote control switch, l i

o ze ci a typeivhic when pushed into the on or position rcinain in thatposition, so that the co* circuit. through its on or ott controllerWine.l remain closed to pcrmi` the coi finned rotation ot the motor untiits circuit is automaticall)`7 brolon by .novable contactors l@ anc l".over, be understoi/d that would be accomplished i 2l instead ofremaining either contacts Q5 or 26, after once pushed 'into connectionwith either of diese l the aimenient oit tt will, hou'- l be held inconnection tor a short interralp it *will also be obvious thatincontinued contact'ivith either the Q5 or 2G, a number of successivem515Y be made Where the operator lines he has not held the contact liz rdown loiig enough; it being understood that after the main si'itch hasonce snapped to on or rurther contacting between the bar 2l A and eitherthe contacts or :2G will produce no further movement ot the motor,because the on or the oli controller wire or circuit has then beendisconnected or open circuited by its coacting contacter 16 or 7.

Kettering now to the structural embodiment illustri ted in 172,3 and-l-.g is a base ol insulating material, serving to sup port and hold theelectromagnetic actuating mechanism, and the circuit opening and closingDarts. Vlfhe actuating electric motor 8l l m l as the armature 3, withthe conunutator ot hich coinmutator brushes 33 and Si conlield magnet 35has the single coil i g 27 one terminal vvire of wnich indicated b v 87,and the other terminal Wire b v Bt S9 and fi-0 are the te ninial Wiresero tending troni the coinniutator brushes 33 and Si respectively. Tosugport and hold the motorT tour posts al, l?7 #i3 and 4A may 1 Thelower end ot each ot these ldtu'ed. and the decreased din ot each postextends through g )late elo, and 'through apei`- t 1 in the lowersurface or the base to 'which the posts and their attacha or securedparte are iirifuly held bv the nits like t5 secured to the threaded endoit' each oi the posts. rEhe iiner end ci each oit' the posts L l2, i3and ,1 1-' .fr 't i 24T ear-alger, rio-ion To. l o. or ie including theenh rged porrade ot a single piece ot i arg-ed port-ions oit the postsiliade et insti-dating` maiecu'ed to the toi: et f3 and Ll-ft by screwsfield magnet trame he eniarged upper l indicated in l Y'.

of the inu tendine' acres ie 'pose bei/Ween the shouldered metallicportion and the insulating enlarged portion #15, while the other end etthe stop bar held against the shoulder of the enlarged portion of thepost by pins, screws or othe' ineans. The stop bar il is secured one endto the post i3 by being clainped b the shouldered upper end ot' theinetalli portion ol this pest and the insulating enlarged portion i5,while the other end of the sto 9 bar 49 is secured to the post ell in ainann'pr similar to that used in connection with the corresponding endet the stoi bar 50.

lt is intended that the pests L3 and lll should act as contact slideterminals for the two conductors e riding trein the coininutator lorushes ot the inetor armature, and for that purpose the condeter -l-Gconnects with the posi-.1t #.3 through the inediuin of the threadedwasher 5l, and the wire 39 conneets with the pest ll through theinediuniet the threadr-d washer 'ln/ese washers it will be noted arelocated between the stop bar l@ and the insulating enlarged portion il-5et the post s3, and the stop bar :30 and the insulatingenlarged portionl5 of the posti-1l.

The driving nid et the armature sha't extends for seine distance beyondthe bearf ing and is provided with the 'threaded portion ll-g the shartbeing7 however, unthreaded er plain at opposite sides et said threadedportion respectively. The outer or as shown the lower end or" thearmature shaft is provided with upper and lower thrust collars, suitablyheld to the shaft, and coactinf)` with the thrust plate held between*nic u u the ase 30 and the insulating plate lep all do e circuit`r itbeirg understood that these conlilre are suitably held to the base 30,

and are 1)rovided with means as indicated ter connecting to there thecircuit wire, one contact of each coacting pair being con nected to afeeding wireT while the other contact o. each pair is connected to atranslating device wire. he two switch arms or bers and 6 mechanicallyheld together but insulated from each other in some suitable way as bythe insulating reds or coupling pieces 59. The rods 59 are shouldered ateach end so that the end portions of decree. d' be received in port theswitch arms?` n place by screws passed thereinto trein the outer side ofeach of the switch bar arins o 2nd 6. These rods, however, while thusholding the switch bars or arlns together, are permitted to turn in theapertures in which their shouldered ends are received and held.

The nut 6l is threaded to lit the threaded portion Sli of the armatureshalt7 and .is arranged at each end to piifotally receive and hold oneeid et' each or the links G2 and G3; the other end 01"' each ot theselinks being slidably received in an ajfierture or hole in each et thetwo insulating switch bar conrods 50. Gn the linlrs G2 and 33 are thesprings Gil and G5; these being` placed. on cach link or toggle red orbar as G2 and 653,

so as to exert their pressure between the nu Gl and th two connectedniain switch bars l nut, dependent upon the bars and tend or the otheret the relative position oi. the nut to the bars. Tifi/Then the nut isuch position in relation 1n s to the niain switch bars.l` that the twolinks and are i"` axial alineinent, then the springs are fullycompressed, and their pres sure and energy when released by thenieveinent or the nut, either above or below the switch arms or bars,will be exerted against s id switch bars or arins, and push thein in adirection opposite te that in which the unt las been moved.

Secured to the nut (il, and urroundinf;v the arinature shaft extendingthrough and above and below the nut are the springs 6G and G7. rlhesesprings act as cushions or bullers iter Ythe nut 6l, s0 that when thenut is moved to either end of the threaded portion -l of the armatureshaft, the outer ends ot the upper spring 6G and lower spring` (i7 willstrilre against the bearing 53 or the thrust device 57 respectively, andthus exert a pressure againstthe nut for the purpose hereinafterdescribed.

rEhe two mechanically associated but elec* trically insulated switcharnis 5 and G `ith their associated parts, extend between the rods Llland and 43 and ll-fl. Seid switch arm 5 has mounted in oearings securedto the bar, rollers G8 and G9 et inetal and coacting with the rods 43and 44. rlhe bearings in which the rollers 68 and G9 are inounted andwhich are secured to the switch arm er bar or that adjacent the reds 43and lle, are of insulating material, and conse quently while the rollersare conducting materiel ano. serve the purpose ot acting as movingelectrical contacts as well as inechanical positioning devices, they areeach insulatedirom the bar 5 to which they are mechanically liXed. Thespindle ol' the roller G8, well as that ot the roller o9, is ofconducting material, and each ot these spindles extends at one endbeyond the hearing of insulating material in a direction to- Ward theother roller. @n the end ot the Spindle oli the roller (S8 is acylindrical contactor portion 70, and on the end ot' the spindle ot' theroller G9 is a similar contacter portion 71. The rollers G8 anyf o)being` in slidable rolling contact with the posts J 5 44, and. beinginsulated trom the f .i arm, act also as electrical contacts to eonneetthe movable contactors and T with the .insulated posts t3 and da., sothat these movable contaetors 70 and 7l. are in reality th'.x movableterminals ot the two armature brushes, moving with the switch har or arm5, and being adapted to make connection and contact with certainstationary movement controlling or reversing contacts hereinatterdescribed.

The other switch arm like G adjacent to the posts 41 and ft2 is alsofitted Yith a pair oi' rollers like 68 and G9, which, however. ceac-twith and are in rolling engagement with the posts 41 and The bearings,by which these latter rollers are .tixed to their respective switch armG are also ot insulating material, in order that said switch arin mayloe insulated from the posts tl and It will now be seen that the twoswitch arms 5 and 6 with their associated parts. when each `fitted withthe rollers like 13S and 69, are held firmly but slid; lily between theposts 41 and 42, and 43 and elfi, so that whi1 i@ the switch arms may henie-ved back and forth on the posts they are held agaii'ist tativemovement; that is, the main switch bars or arms are adapted to movetoward or t'rom the contacts (i0 on the base SO. will be understood,however, that the movement ot' the switoh a rms is limited in thedirection. toward the motor or away troni the Contact 60. or what mighthe called the otlI position. by the stop bars 49 and 5o; while in theopposite direction or in the on position the movement. oi the switchhars is arrested h v the insulating stop pieces 72 which are lined tothe hase 30.

Before proceeding` further with the description of the other parts olithe strnctin1 it may be well at to discuss in a said shaft in adirection dependent upon the direction ot rotation ot the armature andits shaft; it being understood that the nut is held against rotativemovement by its connection to the switch arms through the toggie arms orlinks ($2 and (3S. Assuming :lor instance that the switch arms areagainst either the upper o' the lower op. let it he assumed that the nuthas been inoi'ed h v the rotating shaft into a position between the. twoswitch arms so that the two l iks or hars (i2 and are axially inalineinent. this point the springs have been compressed to theirmaximum, and the entire spring acuated toggle is in its centralposition. tiirther movement now in either direction toward either oi'said stops will iring it bevond the center line, so that "l A .it

l. enen the axes of the two toggle bars or links o2 and 63 are out oi:alinement at which point the 'torce oit' the springs will l e exerted topush the switch bars in a direction opposite to that in which 'the nuthas heen moved, and away trom the nut as shown in 8.

Unless the threaded portion or' the shatt li f' Y were made sntiieientlylong, the momentum oi" the motor armature may cause rotative movementeven after the switch arms have heen snapped and cause the nut to bemoved hard up against the bearing 53, or the thrust hearing 57. Thisbinding ot he nut against a stop would entail an eX- cessivetorqueeliort on the part oll t1 ne armature when it was again necessaryto operate the switch in the opposite direction, and consequently nievethe nut away from its tightly bound contact with either ot the stops asstated. To prevent this binding ot the nut, and also the necessity7 otmaking the threaded portion of the armature shaft oit greater length,the plain portions of the armature shait innnediatelj,7 adjacent and atopposite sides oi' the threaded portion 5l are provioed. Rotation of thearmature shaft will now canse the nut to be in ved alone the s iatt onlylone' as the thread oit the shaft engages with the thread of he nut.Ibut after the nut has passed entirely beyond the threaded portion ateither end oit its movement, and is received on either plain portion otsaid shaft, then no matter whetl'ier said shalt continues to rotate ornot, the nut will not he moved t'urther. However, it will be necessaryto leave the nutso related to the threaded portion that when it isnecessary to more the switch in the opposite direction, and consequentlyagain engage the nut with the threaded portion oi" the shatt to move itreversely along its length, the 'thread of the nut is brought into readyengagement with either end of the threaded portion 5i ot the shaft. Forthis purpose the springs 6G and 67 are provided. ils the nut approachesin its movement either end of the threadedportion 54e, the iree end otthe spring 66, or the spring (il, will be brought up against either thebearing 53 or the thrust plate oit the thrust bearing 57. As the nut ism ved still turtlier along` the shaft, and nnally out ot threaeedengagement with the threaded portion of-l, then either the spring G6 orG7 is su'iieiently con'ipressed to hold the nut up against the end ofthe threaded portion 5i ci" the shaft, so that While continued movementof the shaft in the saine direction produces no tiirt ier motion oi thenut along the shaft, yet the nut is in such relationship with thetlireadec portion oil, so that -when the rotatir motion oit the armatureshai't is in the opposite direction, then the pressure oi' the mitagainst the threaded portion at either end will cause said nut to comeinto iinmediete. elgagement with 'he threads of the threaded per ion -l7by virtue of which, movement in the reverse direction ivill at once beimparted to the nutE causing it to move along the shaft to its oppositep sition and causing the moven'ient oit the switch arms 5 and 6 into theopposite position7 all as shown in Fig. 3. ln this ligure7 as hasalready been stated, the tegole link arms (32 and have just been. movedout of axial alinement, the springs G-/l and being a out to impart theirenergy to the switch arms to move tliein upwardly and away :from thebasey or into the oli position. in `Fig. l this oii position of theswitch n, nut and connected links is indicated by the dotted lines. Atthe point above described and indicated in Fig. 3 the nut @l is still inengagement with one end of the threaded portion fl of trie armatureshaft. is shown, the free end of the spring 67 is about to abut againstthe thrust bearing 5T. Continued movement7 therefore, of the nut alongthe shaft in the same direction will further compress the spring,unt-'il linally the nut is out of nient with the threaded portion, atwhich time it is being pressed up with just enough pressure to producethe desiree rengaging relation and also to balance or react against thepressu e etlertec.. on the nut by f r the toggle sorings Gli and G5. itwill be understood hat the action is the same at either end of themovement of the nut7 and in Fig. l the nut is shown positioned on theiioper plain portion or the a mature shaft and by the spring 66 theupper end of the thr iaoed portion 5i and in position to immediatelyengage Vith the threaded portion -lr when the motor armature is rotatedin the proper direction.

ln order nor-i that the electromagnetic actuating; .ii'icclanisni suchas tie motor may function and operate propo Ay, so 'that its movementwill bo in the desired direction, and so that the tvo elements of inissingin electron'iugnetic actuating device may automatically be put intoproper operative relationship, and automatically connected elec--trically, to bring about the desired on or oit Gbr) contacts in delaiticularly the stationary hiiounted on the insulating plate is a nie-Vtallic pot 73, provided at its upper eiid iiith end Also mounted on th`leach eil vvhic such to2. nstance the screws shown, 'for connrctnig witheach of the contacts oli .76

and 7s iv ire.

niovemen resoectively7 a switch conti-ol circuit rthe contact 76 may becalled an on t controlling Contact., while the Contact T' may7 be calledan movement' controlling Contact, and the Wire connected to the Contact7G may be called the on controllei Wire, and the Wire connected to 'theContact 77 may be called theI ott movement controller ivire. Thecontacts Teli and To aro on and off .movement controlling coi'itactsrespectively, but are electrically connected togeth r by the metallicpost 73. and con-- ncted to this post is one oi" the terminal W rei' 38:troni the lield Winding of the motor. Thi other terminal Wire of thefield i i inding is shown connected at 78 to the main sii itch contactso() to which nain i'eed or curro; i supply wir l is eoni'iectcd.Consequently d Ao i'ield supply side oit the su' f T3 with its doublecoiitact in one position oi: the i.; contactors ZO and 7l. the

'er' the i'ield magnet winding .gli its contact 7.4; is on connected,while in the other position when the contactar 4. f 'i tact m. il is o.

cted. ltoiv it will be noted as indicated TTI L and l `which act as theterninals E the armature brushes` are iu connec'ion with the contactsand 77. Uonsequently the arinature wind'ng is connected across 'from thecontact to the Contact 7.7i: and the conti-olcirciiitis extended fromone side ot the main circuitl through the, field Wind ci? the iterthrough the armature wir to one of the controller rires: and tA l its'respective coiiti^ller Contact, and conand associated arts 'to 'theother ivire ot the main current supplyii'ig or feed ing side ot the maincircuit. As shown by full lines of Fig. i and also as show: by the hancircuit in such location yl alinement. and then pas beyond the center,causing thc toggle springs to act upon the main sufitch bars 5 and G andlhrour tieni into the off position. As tie main ,Witch bars carry withthem the movemen ling contactors and 7l, these u i connected from thecontacts and 77l and thrown into connection with the contacts 7l Lnd 7G,placing the armature Winding through the medium of its brushei` andconnected conductors in a reverse connection with relation to the iielomagnet vvindng.

ll u and therefore ufl-ien the control circ1i= is closed through the oncontrolle' wire then the switch actuating motor Vwill be operz ted inthe reverse direction, and the main switch mechanism will be moved inthe reverse direction to close the main circuit.

The field Winding is denoted by 2, the armature hy 3 and the main switchbars n.' 5 and G in all of Figs. l to 5 inclusive. VEhe contacts 7 8, 9and 10, however, ot Fig. 5 are denoted by 60 in Figs. l to inclusiveWhere they appear, the rods 1S and 19 ot Fig. 5 by i3 and datrespectively in -igs. l to at, the contacters lo and 17 oit 70 and 71respectively of Figs. l to am t movement controlling controllerconnected stationary contacts 20 and Q3 of Fig. 7 5 and 7 7 respectively1n Figs. l to e inc 1"sive d. l make mention of the iforegoing merel.,Yto clear up what might be otherwise considerer as apparentinconsistencies in the use ot reference symbols.

Let it be assumed that the rein switch like that structurall?.Y shoufLin Figs. l, 2, 3 and 4l and diagraminatically represented in Fig. 5, isnov.' placed ii tension of the main wire device most economical. trollerWires would be contacts 76 and 7 an the controller, and there corespective on and oli3 Contact troller, like those indicated by Le and AWire ivoulo also ne main circuit to the contro i i t the tivo Wiresextending fr om tl eontrolle to the magneticallyT actuated switch. Itnesired these controller Wires may be continuey to other controllersplaced at other points.

New it is simply necessary to `push or operate the controller mechanismso as to connect either the on or the oli3 controller ivire with theWire from the main line, and thus produce the operation of the singleelectromagnetic mechanism ot the main sv-:itch to ate the main switchparts to close or open the main circuit. Y

Referring nov; to the diagrammatic ar- 'angement oi parts shown in Fig.G; the electromagnetic actuating mechanism theren rcp-resented, includesthe staiionarx' bii olar electroinagnot ha ing what mayv he called ieiield winding SO mounted and asociat "ted with the iield magnet 'trameSi. `nged to pivotally swing, in coacting polar relationship with thetivo poles oil? the stationary field magnet, is the armature 8:2/ .ithits Winding 83 mounted on the for instance indicated by the dotted linesSfi. T armature is the Iso-crdled Siemens shuttle .voundtype and isadapted to sxvi k oscillate so tlut its poles are eitl L relativeposition to the poles of t ti ary electromagnet as shown or in rhe reverposition, this result being brought about l 'the cluinging ot' thedirection oit the current in its windings; the direction. o'i thecurrent in the stationary field magnet `\,'in ling remaining fixed. Y

Secured 'to the armature shalt Se? but insulated therefrom is the mainswitch bar of the single pole main sivitch also provided with thestationary contacts 85 to one of which one of the tivo feeding crcurrent supply Wires is connected, and 'to the other ot which one of tnetivo Wires to the translatingI devices is connected. These wires areindicated by 87 and SS respectively, the other vire or pole et thecircuit being` indicated by 89.

Also secured to the armatlnfex shatt or spindle Se but insulatedtherefrom are the tivo contactors 9'() and 91 and the tv o terminalsoit' the armature coil or Winding SI5 ae each respectively connected toone of the-3 -entactors which represent and i armature Windingterminals, and due tok their mecln nical attachment to the L.rmatureshaft Sli re movable therewith that they may be connected with thestation i.y

contacts 93 a ment ary contact 93 will be tree from any contact orconnection with the contactors.

is shown the main switch bar or arm 85 is on one end of the armatureshaft while the contactors 90 and 91 are shown as being mounted on theother end of the armature shaipt. l3nt, it will be understood that thisrelative dispositoin is not essential and the parts referred to may bemounted in any other position on the armature shaft, or, :tor thatmat-ter, they may be mounted. on another shait and be connectedmechanically by a link, lever or otherwise with the main armature shalt,so that the motion of the e is directly imparted to the shalt on whichopening` and closing devices are mounted. @r again, if' desired, themain switch bar 85 may be mounted directly on the main spindle or shat'while the movement controlling contactors may be mounted on a separatebut connected shaft.

rlhe circuit malte and break device, located at the control poi` for thepurpose of controlling` the action and movement of the electromagneticmechanism oi' the remote control switch, is, as shown in connect-ionwith the devices ot ig. G, identical with the similar device used torthe same purpose in connection with the devices of Fig. 5. To preventcomplication ot the arrangements shown in the respective tigures, thisswitch controller also shown in connection with Fig. 6 may be againreferred to and its parts indicated by separate characters. rl`hiscontroller has a centrally pivoted contacting lever 96, each end ofwhich is provided with an insulatingpush button. The ends ot the leverare adapted to contact with the two stationary contacts 97 and 98, andas shown contacts at one end with contact 9?. Connecting,` the 1ever toone side ot 'the main circuit, for instance with wire 89, is a suitablewire or conductor. Stationary contact 9? of the controller is connectedby suitable wire with the stationary movement controlling contact on theremote control switch, while the controller contact 98 is connected by asuitable conductor with the movement controlling` Contact 93 on theremote control switch.

The main switch is shown in the off or open circuit position having`been moved into this position by the armature of the electroina actieactuating device, which due to the c ent passed through its winding' ina particular direction, has been caused to move into the position shown,opening 'he main switch and swing'ing` the contacors, as indicated bythe full line a Tow, into he position as shown. hl ow when the armanreby having received a current in its windings in a reverse direction, isCaused to move and place itself reversely with reirl c+ c+ :testcaselation to the stationary held magnet poles, then the main s vitch barand the contactors will be swung back in the opposite direction asindicated by the dotted line arrow, and the main switch will aain beclosed while the relative position ot the contactors with the stationarymovement controlling` contacts will be changed.

Stationary movement controlling` contact 9i it will be noted, isconnected with one terminal ot the stationary ield magnet winding, theother 'terminal the field magnet winding being connected to the maincircuit wire 8'? which is oi" opposite polarity to vire 89. Thisconnection of the field inagnet coil between 'the wire Si and thecontact 9dremains Fixed and the contact 9d iiay therefore be called thelield magnet line contact ot the movement controlling Contact device.rhis contact therefore represents one pole or line wire of the maincircuit, the other pole or line wire being` represented at 95 andassociated with the switch controller, through the lever 96. lit will benoted that either one or the other of the two movable armature terminalcontactors 90 or 91 is in connection with the stationary contact 9i; ineither the on or the off position ot these contactors. rlhat is to saywhen the contacter 90 is in connection with the contact 93 then theContacter 91 is in connection with the contact 94; and when thecontacter 91 is in connection with the contact 95 then the contactor 90is in connection with the contact 94e. The con* 93 and 95 may be calledthe on and off contacts of the movement controlling contact mechanism.One ot the contactors must be in connection with the contact 93 in orderthat an on or circuit closing movement of the electromagnetic switchactuating device may be brought about by the proper closing` oit' thecontrol circuit through the switch controller; and to produce thereverse, opposite or oli movement of the electron'rignetie .switchactuating` mechanism, one of the contactors must be in connection orcontact with the contact 95 which may therefore called the oil`lContact. The wire connecting,l 95 with 9i' may be called the oilcontroller wire, while the wire connecting 93 with 98 may be called theon controller wire.

Now, as has been stated above, the diagrannnatic showing,` as indicatedin Fig. 6 'epresents the location and relationship of ne parts in theoff or open circuited position of the main switch. To bring' about aclosmotion of the switch it will be necessary o close, at the switchcontroller, the connection between the lever 96 and the stationary oncontact 98, thns breaking the connection betieen the lever 96 and thestationary oli contact 97. lllith the controller so connected, thecircuit through the electromagnetic switch actuating and controll cir.-cuit isas follows: from one side of the main circuit S9, to the lever96, controller on contact 98, controller on wire to the on movementcontrolling contact 93, the contacter 90 through the armature winding tothe contacter 91, to the contact 94 field magnet winding, to the otherside oit the main circuit, the wire S7. This closingof the circuitcauses the ycurrent to pass through the armature in such a directionthat it will he moved, and due to the magnetic interaction oi its polesand t-hc` field magnet poles the armature will be moved into the reverseor opposite position. That is to sav, the pole the armature which lisshown in proximity to the upper pole oit the field magnet will, whenmoved. be oppositely placed, so that this pole of tl-iearmature will bein proximitv to the lowerpolc ot the lield magnet. In other words, thearmature will swing or oscillate over a range ot about 90 degrees. Thismotion ot the armature carries with it the switch bar or arm S5 closingthe main switch and swinging the contactors into their 'new or positionsso that the contactor 9()` breaking connection with the conact 93.v is`swung into connection with 94T, while the contactor 91. breaking'connection with 94, is swung into connection with 95. "lhus thc oncontrol circuit has been automatically broken or opened and the otllcontrol wire has Abeen connected Awith one terminal ot the armature.Connection et the armature terminals has now been reversed. The terminalrepresented bv the contactor 90, which iiorinerlv received currentthrough the switch cont-roller from the side 89 of the main circuit.`new in this new position. placed such connection that it must receivecurrent from the opposite side S7 ot' the main circuit through the fieldmagnet winding.

lf now the remote control switch is to he actuated so as to open themain switch, then. itbeing assumed that the contactors are 'in theposition as last l scribed and that the main switch is closed. theconnection oi the arm 9G of the controller with the oill contact 9Thrings about a current relationshi-p in the control circuit as follows:troni one sidey of the main circuit 89 to the controller bar 86,01%contact 97, to the ofi moveinent controlling contact 95. contacter 91,armature winding to the contacter 90, the stationary contact 94 throughthe lield magnet winding, and to the other side 37 of the main circuit.This passes the current through the armature windings in the oppositodirection and producing such an interrelationship and inter-actionbetween its poles and the poles ot the field magnet as to cause it to beswung hack into the open or oli1 position as shown and bringing itspolesl broken or opened at the inovcnieut control-` contact devices otthe main switch when the switch is actuated in either direction. it is,therefore, unnecessary that the contact also he broken at the switchcontroller. ln tact, it is desirable with this general scheme andarrangement that the controller be of such construction that after thecontact has once been established with-either the on or the oil side itshould remain so and not be broken at the controller, this opening orhreak of the control circuity being provided tor as above described.Consequently it is desirable that the make and break device, acting as acontroller in conjunction with this tvpe or st vle ot' the embodiment.'oit in v invention, should `be ar 'anged so that the pushing .in oi thelever 9G, or equivalent. part. into on or off connection, permits thelever to remain in such` connection until it desired to push it in theopposite position. Such an arrangement and construction casilv providedfor in a simple make and break device as indicated, which ma)7 heactuated dircctlytv or spring actuated as dcsircd. although it isunnecessary to provide a spring snap quick break movement because thereis no current to be broken at the controller.

The remote control switch embodying my invention, diagrainmaticallyillustrated in Fig, T involves the use ot a niain switch circuit openingand closing mechanism ot somewhat the same order as that used inconnection with the arrangement shown in Fig. but, instead ofin'iparting the up and denv c rectilinear, or reciprocating movement tothe switch bars or arnis through the niediuni ot a spring` snap actuatedn'iovenient, energy to which is imparted by the rotating niotorarmature, the movement ot the switch bars in Fig. 7 is directly producedby their direct connectimi and associating with one ot the members ofthe two electromagnetic elements which combine to make the coactingelectromagnetic switch actuating device.

The eletromagnetic actuating mechanism includes a stationary`electro-magnetic element, a polar part of which is indicated by 9G. 97is a movable core of magnetic material ha ving a pole in polar coactingrelation to the pole indicated by 96.' The stationary magnetic coro withwhichthe pole 96 is associated has the windingV or coil 98y andthemovable core with which the pole 97 is associated has the winding orcoil99. The

niiovable core is' extended or niechanically` associated kso thattheswitfchf bars orarms are directly mechanically associated or fixedthereto, although insulated therefrom. The contactors 101 and 102 eachrespectively connect to one terminal of the coil 99 on the movable corowhich is magnetically associated with coil and may be mechanicallyconnected or fixed thereto. rilhe contactors 101 and 102 are however,insulated om the core and 'from each other. rlhe coil 98 With itsassociated stationary core and electromagnetic parts havin, tlie pole 9Gn'iay be compared with the ii asinet and its Winding in 5 or 0, n oil 09with its sociated nioif'able core l "ii G' the pole 9T,

may compare with the moving armature with its Winding in and 0.Consequently, before. tie contactors 101 and n .L 10a aie me.

moving terminals oi? the armature Winding', as it may be callerL 'forconvenienco.

litioveiifient controlling stationary contacts, disposed and arrangedsomewhat similarly to the inoveinet controlling' stationary contacts ofFig, 5, are used in coacting associ ation with tle contactors 101 and10Q. rilhe contact 103 is an on movement controlling contact and iseoiuiected by an on Wire to the controller contact 10T. 10e is an et?movement controllingl contact and is connected by an oli' controllerWire to the coni iller ed contact 10". The movement controlling contacts1141- and 105 are both cennected together and to one terminal of thewinding 0S, the other teri'ninal which uf'indinc; is connected to oneside oi the main circuit. The more nent controlling` contacts 'i thearrangementg of Fig. T my be coini i pared to the movement controllinglcontacts of Fig'. 5 as follows; contacts 103 and 105 are positioned,operate and runction in relation to the contactors. substantially as thecontacts Q0 contacts 1041 and 100 arc located, opere. and Vfunction inconjunction with 'the contactors substantially as do the conta ts 91.and rllhis being understood7 it l unnecessary to go into any lurtherdetailec description ci vthe operation and uncti or these movementcontrolling` deif'ices svn in association *with olcctromagnetic hanisaiof Fi 7, any more than to say tl in one position the movable core isattracted to and in the other it is repelled from the stationary core orpole.

The switch controller inale and break de- Vice shown in conjunction withthe. scheine and arrangement of this iOure is arranged so thatconnection may be made with either the on or ed contact 107 or 108respectively by means of a connecting' arm or bar connected in turn withone Wire of the main circuit opposite to the side or Wire to which theterminal from the coil 9S is connected. Instead of using however, thecentrally pivoted lever contacting at each end, a lever contact bar like109, pivoted at one end and provided with an insulated handle While theother end is adapted to make contact with either 10T r 108 when moved inthe proper position, but ordinarily, in the inoperative, open,non-switch coinrolling,` position the lever is free from connection witheither ot the contacts 07 or 108. Consequently in manipulating thisforni. oif switch controller' ineke and break device, it is necessary tohold the connection, by leseliiiio` the lever or arm of the controllerin Contact with one or the other of the contacts 107 and 108 but thisinterval of but short duration inas- -'inch as the switch actuating;mechanism acts directly upon the switch arms or bars instead of throughthe medium oit a spring action which must iirst be energized by theelectromagnetic mechanism before the switch l s or arms are set intoincrement.

The main sifitcli or the remote control switch represented 7 is shownclosed across lthe contacts with which the 'feed or supply side and thetransle-.ting side ot the inain circuit are connected and the morenientcontrolling contactingl devices ar:` shown with the contactors acting;as the terminals of the armature coil in connection and contactassociation with the oi" stationary contacts. ln vienY of thesimilaritj.' in the relationship and 'functioning` or the parts alreadydescribed and compared it would be unnecessary in connection with thisigure to discuss the current. flow through. the control circuit when thecontroller is serJ to on or oit or the manner in which the partsinter-act and co-act, as this will all bc Well understood from theprevious descriptions particularly in connection with the devices ofFig. 5 and is clearly indicated bv the diagrammatic circuitrepresentations or if? 7.

1n order to illustrate the adaptability of the oscillatory or swingingmovement electromagnetic swit h actuating` mechanism to the operation ofa rotarj-.f or oscillating spring actuated snap switch mechanism, theperspectiye diagrammatic arrangement of parts, elements, and devices ofF S has been shovn. In this arrangement the electronagnetic actuatingmechanism includes a isi-polar iield magnet frame 110 and the bipolarpivoted swinging armature 111. The stationary ield magnet iframe has thesingle coil Winding 112 While the armature l as the inding 113, thesewindings being arranged on the two members so as to be in concentricmechanical relationship but so disposed through die disposition of theiron parts of each elements, that the polar parts of each are broughtinto proper magnetic relation one to the other, as indicated in thedrawing'. The polar relationship and coaction between the armature polesand the field magnet poles in the electromagnetic mechanism ot' Fig. 8is substantially the same as that eX- troller circuit through thecontroller on the off side will bring about a current flow in theelectromagnetic actuating device to produce the off movement therein. Inview of the fact of the similarity between the arrangement, operationand functioning of the switch movement contacting devices and thesimilar operation and functioning of the two elements of theelectromagnetic actuating mechanism of Fig. 8, it will. be unnecessaryto go into a lengthy description as has been done heretofore and followout the current paths upon the on or the olf operation of the devicesshown. This will be clearly indicated from the diagrams and from thedescription already given, particularly in connection with Fig. (3. Itmay, however, be stated that whereas in the general scheme andarrangement of the parts of Fig. 6 the main switch mechanism and theswitch movement controlling contacting devices move coincidentally withthe movement of the movable member of the electromagnetic actuatingmechanism, these same `devices in the arrangement and scheme of parts ofFig. 8 do not act coincidentally, but while the main switch and themovement controlling contact devices act and move together, the movementof these parts does not occur until after the initial movement of themovable member of the electromagnetic actuating mechanism. In otherwords, the movement and energy of the electromagnetic actuatingmechanism is first imparted to energize the spring of the switchactuating movement, which when released, results in the quick snapaction of the contact making and breaking parts and in this feature thearrangement of Fig. 8 is similar to that of Fig. 5 and the structureshown in Figs. l, 2 and 3.

IVhile I have, for convenience, termed my invention a remote controlswitch, the term switch must be accepted in the broadest sense because,as will be appreciated, my invention is not in any way limited in itsadaptability as a mere switch operating appliance in the sense that aswitch may be a circuit opening and closing device. The electricalcontacting devices actuated by the electromagnetic mechanism, instead ofbeing mere circuit making and breaking devices may serve to alter orchange the connection, so that when the actuating mechanism moves intoone position these parts are associated together in a certain electricalconnection arrangement, while in the other position, they are associatedtogether in another electrical connection. arrangement. And, it willalso be understood that I may cause to be operated, in conjunction withthe contact parts, members or elements, other devices. From the showingabove referred to and in the drawings, it will also be understood thatembodiments of my invention are not limited to the utilization of eitherelectromagnetic attraction or repulsion or the combined action ofelectromagnetic attraction or repulsion, but my invention contemplatesin a single electromagnetic actuating device coactingly related electricelements or inembers which by their combined interaction and coperationand electromagnetic effect one upon the other, produce movement ormotion for the actuation of circuit controlling devices; and furthermoreinvolves the automatic movement control means associated with theelectromagnetic mechanisi'n, whereby the elements of the completeelectromagnetic actuating mechanism are caused to be so electricallyconnected, relatively one to the other, that a reverse movement ormotion is produced after the actuating device has been caused tofunction in either direction of its movement. One of the features of myinvention involves the actuation of the switching member and movementcontrolling contact devices, by the electromagnetic `actuating devicewith its two electromagnetically coacting elements, preferably throughthe medium of a quick acting, snap or spring movement so that theelectromagnetic actuating device moves or operates initially to impartits energy to the snap or quick acting movement, the energy of whichwhen released being imparted to the movable switching element andcontact devices. The novel construction and arrangement of theparticular form of quick acting movements in association with theactuating device and switching and movement controlling' contacts alsoinvolves structural features of importance.

From the showing of various forms in which my invention may be embodied,it will be understood that I in no way limit myself to the particularform, shape or design of the electromagnetic actuating mechanism or itscoacting elements or to the manner in which these are arranged, disposedor placed in magnetically coacting relationship to produce in the oneelectromagnetic actuating device reverse or opposite movement, motion,actuation or functioning. Nor do I limit. myself to any particular form,shape, arrangement, design or disposition of the movement controllingcontacts, connections or devices through the automatic actuation ofwhich the electromagnetic actuating device is controlled in anydirection of its movement and conditioned in conjunction with thecontrol circuit and controller to act or function differently,oppositely or reversely when again energized. Also while I have shownthe electromagnetic actuating device as being both directly andindirectly (through a snapping movement) associated with the switchingelement and the movable movement controlling parts, it will beunderstood that I may combine these methods of actuation. Furthermore itis also to be understood that while I have shown the electricalconnection reversal of the winding associated with the movable member orelement of the electromagnetic actuating device, that exactly similarresults are obtained by reversing the electrical connection of thewinding associated with the stationary element or member, the otherremaining fixed. Or if desired I may provide an electromagneticactuating device only one member of which has a inding, the other beingotherwise provided with proper polar parts (as for instance a permanentmagnet).

l/Vhat I claim is: y

1. A switch comprising a threaded shaft, means for actuating said shaftin opposite directions, a nut to engage the threads of said threadedshaft, a switching member having an actuating connection with said nutand movable baci;` and forth upon corresponding` movements of said nutby said shaft, means between said nut and switching member foraccelerating said movement, and means cooperative with said nut toautomatically stop its movement on the ccntinued movement ofthe shaft ineither direction.

2. In a switch, a shaft having a threaded portion and an unthreadedvportion at each end of the threaded portion, means for moving said shaftin opposite directions, a nut movable back and forth by the threadedportionl of the shaft upon opposite movements thereof, a switchingmember, means connecting the switching member and nut whereby uponopposite movements of the nut the switching member' is correspondinglyactuated, saidnut being adapted at the end of its movement in eitherdirection to travel free of the thread on the shaft, and means formaintaining the nut in position to engage the threaded portion of theshaft at the conclusion of thev respective movements of said nut.

3. In `an electric switch, a part movable in opposite directions,electrical means for alternately moving said part in said oppositedirections, switching means operatively connected with said oppositelymovable part, means for alternately effecting operative disconnection ofsaid switching means with said oppositely movable part while at the sametime maintaining said switching means in position, relatively to saidopgositeljvv movable part, to be operatively rengaged upon the oppositemovement of said part, and means automatically operative at or near theconclusion of the movement of the switching means in either direction tostop further movement of the electrical means in the direction producingsaid movementof the switching means and to change the electricalarrangement of the electrical movement producing means so that whenagain energized its movement and the consequent movement of saidoppositely movable part will be-in the direction opposite to thatproducing the last prior movement of the switching member.

yll. In an electric switch, electrical means for producing successivemovements, electric circuit. controlling means electrically connectedwith said electrical movement pro-- ducing means for controlling saidmovements, a part movable successively by said electrical movementproducing means on successive actions thereof, switching meansoperatively connected with said successively movable part, means foreifecting operative disconnection of said switching meisns with saidsuccessively movable part at or near the conclusion of each movementthereof, wnilc at the same time maintaining said switching means inposition relatively to said successively movable part to be operativelyreengaged upon the next successive movement of said part, and meansautomatically operative at or near the conclusion of each movement ofthe switching means to stop further movement of the electrical meansproducing said movement of the switching means and to electricallyarrange it so that when again energized its movement and the consequentmovement of said oppcsitely movable part will produce the nextsuccessive movement of the switching member.

An electromagnetically actuated shaft adapted to be rotatively moved ineither direction, a switchingelement, means in cooperative relation withsaid shaft whereby said switching element is moved in oppositedirections, means associated with the aforesaid means for automaticallyfreeing' the cooperative engagement between the shaft and the switchmember actuating means at the end of movement in either direction and atthe same time retaining said parts in such relationship to permit oftheir rengagenient upon the opposite movement of the shaft and meansautomatically operative, at or near the conclusion Vof the movement ofthe swi" ching element in either direction to stop further movement ofthe electrical means in the same direction and to change the electricalarrangement so that when again energized., its movement and theconsequent movement of said switching element will be in the directionopposite to that producing the last prior movement of the switchinglelement.

6. In an electric switch, a part movable in opposite directions,electrical means for alternately moving said part in 'said oppositedirections, a member incoperative relation with said part and adapted tobe moved alternately back and forth thereby on corresponding oppositemovement of the part, switching means operatively connected with saidoppositely movable member, means for alternately effecting operativedisconnection of said member with 'said part, while at the same timemaintaining said part and said member in position to be operatively re-lengaged upon the opposite movement of said part, and means automaticallyoperative, at or near the conclusion of the movement of the switchingmember in either direction, to stop further movement of the electricalmeans in the same direction and to change its electrical arrangement sothat when again energized its movement and the consequent movement ofsaid part will be in the direction opposite tc that producing the lastprior movement of the switching` member.

7. A remote control switch comprising an electric motor, the armatureshaft of which is oppositely movable, a member oppositely movable bysaid shaft and successively on each movement being disengaged therefrom,means for holdingthe member in position to be operatively engaged by theshaft after it Ihas passed out of engagement therewith, a switchingmember movable to on and ofi' positions by said member, and meansoperative with said switching member for controlling the extent of eachmovement of the motor when the latter is energized and at the. same timeconditioning said motor to reverse its movement when again energized,and a controller having separate circuit closing positions to effectsuccessive energizations of said motor.

8. A threaded shaft, a nut moved by said shaft in opposite directionsupon corresponding opposite rotating movement of the shaft, a switchelement operatively conneet-ed with said nut, and means active atpredetermined points in the movement of said nut on said shaft, forautomatically disengaging the nut and shaft so far as its fur thermovement in the same direction is concerned, and for permitting therengagenient of the nut with said shaft upon the opposite movementthereof.

9. A switch comprising a threaded shaft, means for turning -said shaftin opposite directions, a nut to engage the threads of said shaft, aswitching member having an actuating connection with said nut andmovable bach and forth on corresponding movements of said nut by saidshaft, means between 'said nut and switching member for acceleratingsaid movement, and means for po sitioning said nut to be engaged by saidthreaded portion after the nut has completed its opposite movements.

l0. In a switch, a switching member, power operable means, meansactuated by the power operable means for effecting opposite movements ofthe switching member and automatically movable out of working relationwith said power operable means at predetermined points at oppositemovements of the switching member and means to automatically stopfurther movement of the power operable means at or near the conclusionof each movement of the switching member and to condition the poweroperable means to positively prevent repetition of the prior operationand to produce the next successive prior movement of the switchingmember when the power operable means is again energized.

ll. The combination of a switching member, power operable means, meansactuated by said power operable means for moving the switching memberand automatically disengageable therefrom when the switching member hascompleted a predetermined movement and means to automatically stopfurther movement of the power operable means at or near the conclusionof each movement of the switching member and to condition the poweroperable means to positively prevent repetition of the prior operationand to produce the next successive prior movement of the switchingmember when the power operable means is again energized.

12. rlhe combination of a switchingmember, power operable means, meansactuated by said power operable means for moving the switching memberand automatically movable out of operating relation with said poweroperable means when the switching member has completed a predeterminedmovement, means acting against said means to condition it for operativerelation by said power operable means after it is out of said operativerelation and means to automatically stop further movement of the poweroperable means at or near the conclusion of each movement of theswitching member and to condition the power operable means to positivelyprevent repetition of the prior operation and to produce the nextsuccessive prior movement of the switching member when the poweroperable means is again energized.

13. The combination of a switching member, power operable means, meansactuated by said power operable means for moving the switching member inopposite directions, said means being movable out of working relationwith said power operable means when the switching member has reachedpredetermined points in its opposite movements and means toautomatically stop further movement of the power operable means at ornear the conclusion of each movement of the switching member and tocondition the power operable means to positively prevent repetition ofthe prior operation and to produce the neXt successive prior movement ofthe switching member when the power operable means is again energized.

14C. A remote control switch comprising an electric motor, the armatureshaft o f which is threaded, a nut in engagement With the threadedportion of said armature shaft and movable by said shaft in oppositedirections on opposite rotations of said shaft, a switch member movableto on and oif positions by said nut, means cooperative with saidswitching member for governing the extent of each movement of the motorwhen the latter is energized and at the same time for conditioning saidmotor to reverse its movement When again energized, and a controllerhaving separate circuit closing positions to effect successiveenergizations of said motor.

15. A remote control switch comprising an electric motor, the armatureshaft oil which is threaded and is plain at opposite ends of saidthreaded portion, a. nut oppositely movable by the threaded portion ofsaid shaft onto the plain portions thereof,

means for holding the nut in relation to engage said threaded portion,after it has passed free thereof on opposite rotations oi' said shaft, aswitching member movable to on and ott' positions by said nut, meansoperative with said switching member for controlling the extent of eachmovement of the motor when the latter is energized and at the saine timelor conditioning said motor to reverse its movement when againenergized, and a controller having separate circuit closing positions toeect successive energizations of said motor.

In testimony whereof I atlix my signature in presence ot two Witnesses.

JOSEPH SACI-1S. lilitnesses L. L. MARKEL, HEATH SUTHERLAND.

Gopiel o! this patent may be obtained for five cents each, by addressingthe Commissioner of Patenti,

Washington, D, C.

